Product Details
Cadmium tungstate CdWO4 (CWO), due to its low intrinsic background
and afterglow together with sufficiently high light yield, is the
most promising for spectrometry and radiometry of radio nuclides
under extremely low activities, and also for computer tomography.
The crystal is transparent and emits light when it is hit by gamma
rays and x-rays, making it useful as a detector of ionizing
radiation. Its peak scintillation wavelength is 480 nm (with
emission range between 380-660 nm), and efficiency of 13000
photons/MeV. It has a relatively high light yield, its light output
is about 40% of NaI(Tl), but the time of scintillation is quite
long (12~15 s). It is often used in computed tomography. Combining
the scintillator crystal with externally applied piece of boron
carbide allows construction of compact detectors of gamma rays and
neutron radiation.
Specifications
Scintillation Properties |
Materials | CdWO4 |
Light yield (Photon/MeV) | 13000 |
Decay time (s) | 12-15 |
Peak emission (nm) | 480 |
After glow | 0.1%@6ms |
Density (g/cm3) | 7.9 |
Hygroscopicity | No |
|
Polishing Specification for Optical Grade |
| StandardPrecision | High Precision | Super Precision |
Orientation Tolerence | < 1° | < 0.5° | < 0.2° |
Thickness/Diameter Tolerance | ±0.10 mm | ±0.05 mm | ±0.02 mm |
Surface Flatness@633nm | <-2 | </2-/4 | /4-/6 |
Wavefront Distortion | <(2-4) | <(1-2) | <(-/2) |
Surface Quality | 60/40 | 40/20 | 20/10 |
Parallel | 45 | 1 | 10 |
Perpendicular | 60 | 30 | 20 |
Clear Aperture | >90% |
Chamfer | <0.2mm×45° |
Coating | Available upon request |
Company Profile
Crylink is a manufacturer and supplier of Single Crystal Materials and
optical components used in lasers, imaging and other optical areas.
Crylink is one of the high tech company of Nanjing Institute of Advance
Laser Technology(NIALT), which is the only one industrialization base of Shanghai
Institute of Optics and Fine Mechanics (SIOM), Chinese Academy of Sciences.
Our peoduct mainly include laser crystal,nonlinear crystal, Q-switch crystal,laser,scintillator crystal , optic crystal and Piezoelectric crystal.
Crylink
——growing crystals, linking values
We are seller of crystals. At same time, we are producer of
crystals.
It is a long and arduous process from seed crystal to the desired
single crystal, the composition of the crystal changes through
three states and eventually grows into beautiful crystals. We
witness the growth process of each crystal and clearly know
technologies of each step in the crystal growth process, which
means that we can directly provide customers with crystals that
satisfied customer requirements.
We create value. At same time, we link value.
From company to individual, we all pursue the word "value".
Individual is valuable in society, enterprise is valuable in the
industry. We cherish the existence of value. We hope to set the
enterprise’ value as start pointing, expand to the surrounding,
extend the value from the customer to the supplier. Linking
enterprise and the industry more closer, to create more value.